Yamaha NS-SW901 Manual download pdf (Page 8)

5 En

Since the low-end frequencies of audio signals feature long wavelengths, they are almost non-directional to human ears.

The super-bass range does not create a stereo image. Therefore, a single subwoofer may be enough to produce a high-

quality super-bass sound. However, using two subwoofers (similarly to L and R front speakers) can enhance your acoustic

experience.

Place the subwoofer as shown in fig. , or for the optimum effect.

: subwoofer : front speaker

Using one subwoofer

Place the subwoofer on the outside of either the left or right

front speaker.

Placing the subwoofer in between the left

and right front speakers

If you are placing the subwoofer in between the left and

right front speakers, position it slightly at an angle toward

the wall for better effect.

Using two subwoofers

Place the subwoofers on the outside of each front speaker.

• This unit features a magnetically shielded design. However, there is still a chance that placing it too close to a CRT-type

TV set might impair picture color. Should this happen, move this unit away from the TV set.

• If the speaker volume is very loud, furniture or window glass may resonate and the subwoofer itself may vibrate. In this

case, lower the volume level. To limit resonance, use a thick curtain or similar cloth that tends to absorb sound vibrations

effectively. Also, changing the subwoofer position may be helpful.

PLACEMENT

Subwoofer orientation

Note

The placement shown in the figure below is also

possible. However, if the subwoofer system is placed

directly facing a wall, the bass effect may suffer due to

phase cancellation caused by the interference between

the direct and reflected sounds. To prevent this from

happening, place the subwoofer system at an angle.

(Figures , , and ).

There may be a case that you

cannot obtain enough super-

bass sound from the subwoofer

due to standing waves.

Notes

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Yamaha NS-SW901 Manual Page 8